What type of fuel is primarily used in the F/A-18 E/F?

The primary fuel used in the F/A-18 E/F is JP-5, which is a military-grade jet fuel. JP-5 is designed for aircraft that operate from aircraft carriers and is known for its high flash point, which significantly reduces the risk of fire and explosion on the flight deck. This feature is crucial for safety in naval aviation operations where fuels are exposed to a variety of environmental conditions.

JP-5 also offers good thermal stability and is effective in providing the necessary performance characteristics required for high-performance military aircraft like the F/A-18 E/F Super Hornet. The choice of JP-5 reflects the need for a fuel that can perform under the demanding circumstances experienced in carrier operations, including variable temperatures and humidity.

Other fuels listed, such as Jet A and Jet A-1, are more commonly used in commercial aviation and do not possess the same fire safety characteristics as JP-5, making them less suitable for military operations. JP-8 is another military fuel type but is primarily used for ground vehicles and other applications rather than as the designated fuel for naval aircraft. Thus, JP-5 is the correct choice due to its specific design for carrier operations and enhanced safety features.